COMMERCIAL AIRCRAFT NOISE DEFINITION - L-1011 TRISTAR. VOLUME IV-PROGRAM DESIGN SPECIFICATION

Calculation procedures to describe airplane noise during takeoff and approach have been programmed for batch operation on a large digital computer. Three routines are included. The first normalizes far-field noise spectra to reference conditions and then determines spectra at various distances from the airplane, for airport elevations between sea level and 6000 feet and ambient temperatures between 30F and 100F. Overall sound pressure levels, A-weighted noise levels, perceived noise levels, and effective perceived noise levels are calculated. The second routine uses aerodynamic and engine thrust data to produce takeoff and approach flight path description. Volume 4 describes the computer program and gives instructions for its operation.

• Supplemental Notes:
  • See also Volume 3, AD-A012 373 and Volume 5, AD-A012 375.
• Corporate Authors:

  Lockheed-California Company

  2555 North Hollywood Way
  Burbank, CA  United States  91505

  Federal Aviation Administration

  Office of Environmental Quality, 800 Independence Avenue, SW
  Washington, DC  United States  20591
• Authors:
  • Shapiro, N
• Publication Date: 1974-9

Media Info

• Pagination: 126 p.

Subject/Index Terms

• TRT Terms: Acoustic signature; Aerodynamic noise; Aircraft noise; Civil aircraft; Computer programming; Digital computers; Electromagnetic spectrum; Environment; Flight paths; Jet engines; Jet propelled aircraft; Jet transports; Landing; Noise; Sound attenuation; Sound level; Specifications; Takeoff
• Identifier Terms: Lockheed L-1011 aircraft
• Uncontrolled Terms: Noise spectra
• Old TRIS Terms: Aircraft landing; Jet engine noise; Jet plane noise; Takeoff and landing
• Subject Areas: Aviation; Environment; Vehicles and Equipment;

Filing Info

• Accession Number: 00092014
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA-EQ-73-6-Vol-4 Final Rpt., LR-26075-Vol-4
• Contract Numbers: DOT-FA73WA-3300
• Files: NTIS, TRIS, USDOT
• Created Date: Oct 18 1976 12:00AM